An additive mixed or added to a (usually illegal) substance to dilute it.
This practice is commonly used by less-than-trustworthy suppliers in order to boost revenues.
Cuts used in powdered, crushed, sharded, or 'rock' substances can include: sugar, flour & salt. There are many more, but these are the common ones. The afore mentioned cuts are sometimes added
in the making of the substance, but can also be added post-production. A common process for the shifty
crystal meth dealer is to measure out a small amount less than you're buying and add a couple of drops of olive or vegetable
oil to your baggy to make up the remainder of the weight.
In cut substances that one smokes, the best reccomendation is to melt the substance pre-smoking, and continue to apply heat in 8-10 second increments until the cut has burned off. You will know the cut has burned off because, when the heat is removed, the substance will re-form quickly. (Cut substances generally remain liquidy/runny much longer than the true substance should) In
burning off the cut, be cautious not to burn the substance. If the substance is cut with sugar, it is more likely to burn easily, so be wary. Oil cuts can make the
substance pop or crackle when exposed to heat.